payne



Dec. 30, 1924;

152L314 W B. PAYEN-TEI mo'ro'a DRIVEN rnmnm mama's Filed Nov. 12, 1925 4 Sheets-5het 1 ENTOR. Vi? 53. Fa Nll 5/5 ATTORNEY D MC 1 1 (I: P r

W. B. PAYNE:

MOTOR DRIVEN PRINTING MACHINE Filed Nov. 12, 1925 4 Sheets's Sheet 3 I N V EN TOR. hm mm" 1% W: Z 1- Dem- 30, 1924. V 1,521,314

' W. B. PAYNE MOTOR DRIVEN PRINTING MACHINE Filscl Nov. 12, 1925 4 Sheets-Sheet 4 9 v 54. I I

il t) Patented Dec. 30, 1924-.

UNITED STATES PATENT OFFICE.

WALTER B. PAYNE, "015' ROCHESTER, NEW YORK, ASSIGNOR TO TODD PROTECTOGRAPH (30.. OF ROCHESTER. NEVJ YORK. A CORPURATION 055 NEW YORK.

MOTOR-DRIVEN PRINTING Application filed November 12, 1923.

To all iii/mm it may concern Be it known that I, Enrica l5. ,iarnn a citizen of the United States, residing at Rochester. in the county of ltlonroe and State of New York, have invented certain new and useful Improvements in Motor- Driven Printing Machines: and l. do hereby declare the following to he a tall, clear, and exact description of the san'ie, IQlEUITOllCQ being had to the accompanying drrnvings forming a part of t is specification, and to the reference ninnerals niarhed thereon.

This invention relates to motor driven printing machines of the variety, for ex ample. adapted for printing: le 'ends such as monetary values on checks, dra'l ts and the like, one object of the invention being to providi a practitail and eliicient machine ot the above character coinl irising means for :mtoniatically regulating the speed ct the motor under the variation in load produced by the intermittent connection of the motor with the machine. ,s-Xnother object is the provision of such a machine having an intermittent character of operation and a "predetern'iined position of rest with means for a1itoniatically producing a ditl erential regulation of the driving! motor to correspond wit-h the state of rest or *(Jl'fil'ilillOll of the machine. A further oh'ject to provide in a machine o i' the above c lainactor having .a two part separable ii raine snch as eniployed for affording; access to interior port t licient switch means normally closed during); the operation ol' the machine lint arranged to he automatically or ened by the separatingg' movement oi the 'Ft'tllrit? part tor stopping}; the motor While the mrts are separated.

To these and other ends the invention resides in certain iniprovoincnts and combinations (it 1.711115; all as will he hereinafter more tully deserihed. the novel features heing pointed out in the 'Ultlll'l'lF at the end (it the specification.

In the drawings:

l i z 1 is a longitudinal Siltlitll'iill elevation through a motor driven printing nia chi ne cn ihodyingr the present invention;

Fig. 2 is a detail elevation of resistance means employed in the motor circuit;

Fig. o 1. a sectional, elevation on the line MACHINE.

Serial No. 674,208.

l3 in Fig. 1 showing the motor regulating means;

Fig. at is a detail sectional elc *ation on the line l -fl in Fig. It showing the motor disconnected troni the printing couple;

Fig. 5 is a siniila r vicvv showing the motor connected to the printing couple;

Fig. 6 is a similar View showing mediate position oi? the parts;

Fig. i" is a transverse sectional elevation of the machine snhi'itantially on the line T 7 in Fig. 1;

Fig. 8 is a detail pla n view of a portion of the resistance means shown in Fig. 9;

Fig. 9 is an enlarged end elevation oi the resistance means as viewed :froin the left in Fig. 2;

Fig. 10 is a perspective view of a portion of the contact .i'neans controllng the variation oil resistance in the motor ciraiit;

F '11. a transverse sectional elevation of the machine substantially on the line 11-1l in Fig. 1 and shoiv'np; the fran'ie parts separated to afford access to the printing couple; and

Fig. 12 is an enlarged sectional plan view on the line 1212 in Fl 3 showing the switch means for opening the motor circuit. while the frame parts are separated.

Similar reference runnemls throughout the several. views indicate the same parts.

The invention embodied, in the preierrod :lforin herein disclosed by Way of illustration, in con}iinction with. a printin chine of known variety such as discl in my topcndii air an interh iplication jlor Letters Pal.- ent, Ser. No. 563, 58 tiled May '23, 1922, for printing a pa-ratus, so that but a brief description of the same is required for present purposes.

he printing apparatus proper coniiprises a two part, separable lianxe and casino; ineluding a base part- 1'5. 1. and ll, to which hinged at one side. as at 16, an in)- per :t'ran'ie part 17 hereinafter termed the casing. The hat-3e provides at its top a printing hed 18 between which and the casing 17 is a slotv 19 in which the 'WOlk is in serted from a table 20, Fig. 7, at one side of the machine. Jlournaled in the base a shaft 2L Fi e. 1 and T 1 wing fixed thereon spaced arins between which is rotatably supported a platen wheel 23 operating through a slot in the printing bed above to press the nor]: against the type forms supported in the casing.

The type carrier is shown at 241 as of generally cylindrical shape with longitudinally spaced, circumferentially extending type forms 25 for cooperation individually with the platen wheel 23. The type carrier is splined on a main shaft 26 journaled at its end in the part 1'? and it is apparent from this construction that the type carrier may be shifted longitudinally on shaft 26 to bring the type forms selectively to position for cooperation with the plateir after which the carrier may be rotated by rotation of the main shaft to print and feed the work. The operation of the machine thus involves an alternate relative type selecting movement of the printing couple with shaft 26 station airy and a rotary printing movement of the couple to impress and feed the work therebetween effected by rotation of the main shaft 26.

The type selecting movement is effected by manual means comprising a yoke 2? having spaced arms 28 and 29 embracing the ends of the carrier and slidably and rotatably engaged with the main shaft. An arm 30, Fig. 7, projects from the yoke through a slot in the casing and carries an index 31 cooperating with a dial on the casing marked with the type forms on the carrier. Fixed to the arm and yoke also is a handle 33 for sliding the carrier in accordance with the dial to select the type, and also for rocking the yoke through a small angle about the main shaft for a purpose presently to be described. lnking rolls for the type are shown at 34 rotatably supported on yoke 27.

Means are provided through which the rocking movement of handle 83 and the yoke, imparted after the selection of each type form serves to connect to the main shaft a continuously driven electric motor 35 of any suitable variety mounted as shown on one end of the casing. This mechanism comprises a lug 36 on yoke 27 adapted in the rocking movement of the latter to engage a bail 37 fixed on a shaft- 38 rotatably supported by any suitable means on the frame and projecting through one end of the latter into an end compartment indicated generally at 39. The end of the shaft is here provided with an arm 4:0 fixed thereon and carrying a pivoted spring actuated lever ll. One arm d2 of this lever isshaped to engage an arm 43 of a spring actuated lever pivotally supported on the casing and having an arm 45 adapted in one position to engage the end so of a dog l? pivotally sup ported on a disc 48 fixed on the main shaft. Lever 41 has also an arm -l9 arranged to be engaged and swung by the hub portion of dog during the rotation of the disc 48 with the main shaft as shown in Figure 6. At 50 is a toothed portion of a sleeve 51 rotatably carried on the main shaft and provided with a gear meshing with a pinion 53 continuously driven by the motor as hereafter described. A spring 54 tends to swing dog st? to bring a lug thereon into engagement with one of the teeth of member 50 for connecting the latter with the main shaft and thereby rotating the same and the printing couple to effect a printing operation. Dog 47 however is normally held out of engagement with member 50" as shown in Fig. 4 by the contact of its end 46 with lever la, a synring actuated pawl 55 serving in cooperation with a shoulder 5"? on the disc to prevent reverse movement of the latter. It is apparent, however, that the rocking movement of shaft 38, effected by the. depression of handle tends to move lever a1 to swing lever 44 out of the path of dog 4*, as shown in Fig. When thus released the dog is moved by its spring into engagement with the rotating toothed member 50 and the main shaft is thereby rotated. As dog 47 reaches lever arm 49, however, it swings lever 41 out of engagement with lever 44:, as shown in Fig. 6, so that the latter returns to initial position and at the end of one complete revolution of the main shaft engages and detaches dog i? from the rotary member 50 and again brings the main shaft and printing couple to rest for the selection of the next type form to be printed.

The motor is connected with the toothed member 50 by means comprising a flexible coupling 58 of any suitable variety between its shaft and a shaft 59 supported in suitable bearings on the frame. Fixed on shaft 59 is a worm 6O meshing with a worm wheel 61 on a downwardly extending shaft 62 carrying at its lower end the pinion 53 pre viously referred to driving sleeve 51 the above parts being shown and described in detail in my said copending application.

It is evident from the above description that the printing couple is intermittently connected with and disconnected from the continuously rotating motor so that the latter is alternately loaded and allowed to rotate idly. The operation of the printing couple, especially where the printing surfaces are corrugated or otherwise formed for breaking the paper. as commonly the case in machines of this variety. and also when a heavy quality of paper is printed, imposes a substantial load on a motor of the small size and power necessitated by the limits of size and weight in apparatus of this character and a. motor suitably designed and energized for operating the printing couple. tends to rotate at an excessive speed. or in other words to race. while idling between successive applications of the 10nd. It has been found that this di'l'liculty may be adloo vantageously overcome by an automatic va-ii able elect 1; control of the motor speed. The invention accordingly provides means for automatically operating an electric speed regulating apparatus for the motor. connected with the printing couple and thus controlled by the mechanism connecting the latter to and (-liscomiecting the same from the motor or in other words by the-operating handle 33 of the machine. Such means eomprises a resistance element automatically included in the motor circuit to reduce the impwssed voltage at the instant of disconnot 1011 of the printing couple from the motor and to I'G-IHO'VG the resistance at the beginning of each printing o iicration.

The resistance means mounted-in the base part of the frame and constructed as presently to be described. connection being made therewith through a pair of conductors and 64. F 3 leading upwardly from the base to the automatic device for including the same in and removingit from the motor circuit which device will now be described.

Fixed on the main shaft is a drum (35, Figs. 1 and 10, of insulacing material the circumference oi which carries a ring of conducting metal on having a gap or open ing (37. Engaging the circumference of the drinn are a pair of spaced brushes GS and (39 sliding longitudinally in stationary insulated conductin bearings 70 and 71 and maintained in contact with the drum "by the action of springs 7 2, as well. understood in the art, these parts being so constructed and arranged that in the )osition of rest occupied by the printing couple between pr nting .i'novements, brush 68 engages insulating material in the gap 67 of body 65 out of contact with the ring 66 which however is engaged by the other brush. The conductors b3 and (i -l are connected respectively with the holders of brushes 68 and (39. From the brush 8 a conductor 7 3 leads to one side ot the supply line 74; while a conductor 7 con .ects the other brush 69 with the motor. From the other terminal of the latter a conductor 76 leads to a manually operable switch 77 of any suitable variety, the other terminal of which is connected by a conductor 78 with the other side of the line. It is apparent from the construction of this device and its connections that while the motor is disconnected from the printing couple in the stationary condition of the latter, the resistance means in the base of the machine is included in the motor circuit to reduce the impressed voltage and the idle speed 01 the motor. At the instant of: connection of the motor with the print ing couple, however, the rotation of drum 65 brings both brushes into contact with its conducting ring 6 which shortcircuits the resistance means and thus applies the toll ceives its load.

line voltage to the motor as the latter re- At theend each printing operation the parts return to the initial position shown in Fig. 3 in which the printing couple is disconnected and the load removed from the motor the speed of which is thereupon maintained substantiall. constant by the inclusion of the resistance in its circuit as already described.

The resistance. means is, in the present in-- stance, a cylindrical coil 7 9, Figures 1 and 9 of suitable wire or other resistance mate,- rial, the cell being supported at its ends by bracket 80 on the base, Q he coil is lapi a-al at a plurality of hmg-itudina'l'l x spaced points and such taps connected with eontacts 81 supported innnd projecting through a bar of insulating material 82 par; ad with the coil mounted at its ends in extensions 83 0i. the end brackets. Slidably sup ported on the bar in any suitable :n'iasnner is a shoe "8. Figures 8 and 9 of conductive metal provided with a spring contact arranged to engage successively andiinlividually with the contacts 81 as the shoe is slid longitudinally of the coil. Tlhe'shoc is connected through a safety switch means described below with one of the conductors 63 01-64, while the other of these conductors is connected as 85, Fig. 2 with one of the end taps oi? the coil. Shoe 8+1: may be conveniently adjusted as described therefore. to vary the an'lount of resistance employed, as C(illlllllOlilS may require. to V compensate for the variation in load on the motor and maintain its speed constant.

Another advantageous feature oi the present invention .1 found in the provision of safety means for automatically breaking the motor circuit whenever the frame 'por tions, or base and upper cash are swung apart, as illustrated in Fig. ll l r the pur pose of obtaining access to the interior thereof, without first stopping the motor by operating switch 77. The machine is opened of course, only "between printin erations, and therefore while the res means in the base is connected inseries with the motor circuit. Interruption oi the cii cu'it through the resistance means therefore serves to stop the motor, and for automatically accomplishing this result conductors 63 and '64 are-connected with the resistance through the terminals of aswiteh part indt cated generally at 86 in the bottom of the casing compartment 39 which depends, as shown in Fig. 1, opposite an end of the base. This switch part comprises spaced insulated terminals 87 and 88 fixed therein and extending exteriorly ot the casing toward the base for contact respectively, in the closed position of the frame, rith a pair ot con tacts S9 and 90 in a cooperating switch part 91 projecting oppositely through the end. wall of the base. These latter contacts are lio Ill

Ill

(ill

preferably spring actuated as shown toward. the fixed contacts 87 and 88 to insure electrical connection therebetween when the frame parts are in closed position. Contacts S9 and 90 are connected as described with the resistance means and it is apparent from this construction and its connections that whenever the frame parts are separated. the motor circuit is automatically broken. and the motor stopped until such time as the frame parts are returned to operating position, when the circuit is automatically reestablished. The invention thus provides in combination with printing apparatus of the character described a thoroughly practical and efiicient apparatus for automatically regulating the driving motor to at all times maintain its speed substantially constant, which apparatus is controlled auto matically by the normal operating means of the printing machine. The apparatus likewise provides reliable safety means for antomatically stopping the motor whenever the machine frame is open and thereby avoiding possible injury to the mechanism or to the operator.

I claim as my invention 1. The combination with a printing machine of a continuously driven electric motor therefor, mechanism for alternately connecting said. motor to and disconnecting it from said machine to effect intermittent operation of the latter, and electric speed regulating apparatus for said motor operated automatically by said mechanism to compensate for the intermittent application of load thereto.

The combination with a printing machine, of an electric motor for driving the same, power supply means connected with said motor for driving the latter continuously, mechanism for alternately connecting said motor to and disconnecting it from said machine to effect intermittent operation of the same, resistance means for inclusion in the motor circuit, and a device operated automatically by said mechanismfor varying the amount of resistance in said circuit and regulating the motor speed under the alternating application and removal of load.

The combination with a printing machine, of an electric motor for driving the same, power supply means connected with said motor for driving the latter continuously, mechanism for alternately connect ing said motor to and disconnecting it from said machine to effect intermittent operation of the same, resistance means for inclusion in the motor circuit, and contact means connected with and driven by said machine for varying the amount of resistance in said circuit and regulating the motor speed under the application and removal of load.

4:. The combination with a printing machine, of an electric motor for driving the same, power supply means connected with said motor for driving the latter continuously, mechanism for alternately connecting said motor to and disconnecting it from said machine to effect intermittent operation of the same, resistance means for inclusion in the motor circuit, and a device comprising brushes and rotary contact means connected with and rotated by said machine for varying the resistance in said circuit and regulating the motor speed under the applicaion and removal of load.

The combination with a printing machine, of an electric motor for driving the same, power supply means connected with said motor for driving the latter continuously, mechanism for alternately connecting said motor to and disconnecting it from said machine to effect intermittent operation of the same, resistance means and a device operated automatically by said mechanism for including said resistance means in the motor circuit while the motor is disconnected from the machine to regulate the idle speed of the motor.

The combination with a printing ma chine, of an electric motor for driving the same, power supply means connected with said motor for driving the latter continuously, mechanism for alternately connecting said motor to and disconnecting it from said machine to effect intermittent operation of the same, resistance means and a device comprising brushes and a rotary contact means connected with and rotated by said machine for including said resistance means in the motor circuit while the motor is disconnected from the machine to reduce the idle speed of the motor.

7. The combination with a printing machine comprising atype carrier and platen having alternately a relative type selecting movement and a relative printing movement, manually operable means for effecting said selecting movements, a continuously driven motor, mechanism for intermittently connecting said motor to and disconnecting it from said machine to effect said printing movements, an electric speed regulating apparatus for said motor, and a device for intermittently connecting said apparatus in the motor circuit connected with said machine and operated automatically by said printing movements thereof.

8. The combination with a printing machine comprising a type carrier and platen having alternately a relative type selecting movement and a relative printing movement, manually operable means for effecting said selecting movements, a continuously driven motor, mechanism arranged for operation by said manual means for'intermittently connecting said motor to and dis connecting it from said machine to effect Ill lIEU

said printing movements thereof, resistance means and a contact device for intermittently connecting said resistance means in the motor circuit and connected with said machine for operation automatically by said printing moven'ients thereof.

9. The combination with a printing niachine comprising a printing couple having alternately a rotary printing movei'nent and a relative type selecting movement, a rotary shaft tor eiiectingr said printing movements, a coiitinnmisly driven electric motor, mechanism tor intermittently connecting said motor to and disconnecting it 'i'roi'n said shaft resistance means, a pair of brushes, a contact ring carried by said shaft in cooperation with said lnushes, and connections between said brushes, resistance and motor arranged to include said resistance means in the motor circuit between said intcrn'uttent printing; movements.

ill. The combination With a printing ma- .chine comprising a two part separable frame and a printing couple carried thereby an electric motor for driving sald couple, and switch means in the motor circuit arranged to be opened automatically by a separating movement of said frame parts for stopping the motor While said parts are separated.

11. The combination with a printing machine coniprising a two part separable 'lrame and a printing couple carried thereby having an intermittent printing movenient a continuously rotating electric motor mechanism for intermittently connecting said motor to and disconnecting the same from said. printing couple to effect said printing; movements, resistance means for the motor circuit, a contact device operated by said printing couple to automatically vary the resistance in said motor circuit and regulate the motor sgeed under the application and removal oi the load, and nornially closed switch means in the motor circuit arranged to be opened by the separating movement of said frame parts for auto matically stopping the motor While said parts are separated.

WALTER B. PAYNE, 

